Top Senior Software Engineer Jobs in Kansas City, MO

Build and scale full-stack financial product experiences for OnePay’s employer benefits platform. Lead technical design, establish architectural and coding standards, optimize systems for reliability, security, performance, and scalability, and make technical decisions balancing rapid delivery with sustainable solutions. Collaborate with product, design, and operations to deliver features across web, iOS, and Android using distributed systems, APIs, and modern frontend technologies.

Designs, builds, scales, and operates distributed CI/CD services supporting millions of builds, tests, and releases. Develops code for Azure-based infrastructure spanning virtual machines, containers, and custom lab environments. Responsibilities include requirements analysis, architecture and design documentation, estimation, debugging, optimization, operational playbooks, on-call incident response, monitoring, reliability improvements, and mentoring engineers.

Designs and maintains enterprise software, APIs, microservices, databases, ETL pipelines, CI/CD workflows, RPA solutions, and AI/LLM applications. Leads architecture and engineering reviews while implementing secure integrations, data governance, HIPAA/PII compliance, vector search, RAG, agentic workflows, and responsible AI practices. Collaborates with technical, compliance, data, and business stakeholders to move automation and AI solutions from prototypes into production.

Lead the technical roadmap for partner integrations across APIs, SDKs, and web experiences. Design and build scalable products, standardize external partner integrations, and deliver payment and data-sharing capabilities. Collaborate with Engineering, Product, Design, Infrastructure, Sales, Partner, and Customer Success teams while remaining hands-on. Drive architecture, code quality, delivery, stakeholder alignment, and technical strategy for high-impact fintech products.

Design and implement backend services, modernize legacy systems into microservices, ensure strong testing and production observability, and collaborate with Product and Engineering teams. The role requires independent project ownership, strong system design, AI-assisted development using tools such as Claude or Cursor, effective communication with nontechnical stakeholders, and adaptability in an ambiguous, fast-changing environment.

Build and optimize automated release engineering systems, including CI/CD pipelines, build and deployment tooling, and AWS cloud infrastructure. Ensure software delivery quality, security, compliance, and reliability. Lead complex projects, participate in on-call support, mentor teammates, and promote technical excellence. The role uses Go, Java/Kotlin, TypeScript, GitHub Actions, PostgreSQL, DynamoDB, Backstage, AWS, and AI development tools.

Develop and maintain scalable backend services and RESTful APIs using .NET Core, while supporting React frontends. Build and test software components, query SQL Server and PostgreSQL databases, collaborate cross-functionally, participate in code reviews and Agile ceremonies, and use AI-assisted development tools. The role also involves continuous improvement and may include microservices, CI/CD, Docker, cloud, authentication, GraphQL, and event-driven systems.

Build and maintain full-stack features for Vanta’s third-party risk management products, including vendor onboarding, lifecycle management, monitoring workflows, data models, and platform abstractions. Write tested code, participate in reviews and architecture decisions, and collaborate with product, design, and engineering teams to deliver customer-facing functionality. Experience with TypeScript, React or Node.js, web applications, databases, and REST or GraphQL APIs is expected.

Lead technical direction for a central infrastructure team supporting all product engineering. Design and maintain AWS infrastructure, Terraform modules, CI/CD workflows, observability, security, networking, cost-visibility tooling, and operational platforms. Coordinate multiple initiatives, improve reliability and incident response, establish paved roads adopted by feature teams, guide infrastructure strategy, and coach engineers across the organization.

Build and optimize pipelines migrating 8,000+ documentation pages, recreate technical documentation UI components in Angular, manage CI/CD and DevOps workflows, and work with Java backend services and proprietary enterprise infrastructure. Collaborate with design and digital teams, engage directly with clients, lead technical projects, and deliver reliable systems under aggressive timelines.

Designs and builds full-stack cloud applications with AI-powered features for supply chain and operations. Responsibilities include integrating ML models and LLM APIs, developing agentic workflows and MCP servers, modeling knowledge graphs and ontologies, establishing engineering standards, implementing CI/CD and testing, monitoring production systems, and mentoring junior engineers. The role also leads complex application projects and translates business problems into reliable, production-ready solutions.

Senior Full Stack Engineer building scalable, high-performance web applications. Own feature design through delivery, write clean reusable code, optimize databases, work with CI/CD, containers, cloud, distributed systems, mentor teammates, and maintain zero customer-reported bugs.

Modernize and develop a large-scale React Native mobile application with reliable offline-first functionality, local data storage, synchronization, BLE device integrations, scalability, and strong performance. The role includes shaping architecture, improving engineering practices, collaborating cross-functionally, mentoring developers, providing technical leadership, and visiting customer farms to understand workflows. Requires extensive mobile development experience and occasional U.S. travel.

Build and maintain full-stack software for startup clients, including backend services, frontend experiences, new features, redesigns, bug fixes, and product improvements. Collaborate daily with product managers, designers, and engineers in a distributed, agile environment. Take ownership across the technology stack, write clean maintainable code, contribute to client missions, and support team growth and knowledge sharing.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Develop and modernize a production React Native mobile application supporting offline-first workflows, BLE device integrations, synchronization, scalability, performance, and reliability. Design and maintain application features, contribute to architecture and engineering standards, collaborate cross-functionally, mentor developers, provide technical leadership, and engage with farm customers. Occasional travel to customer locations is required.

The Senior Fullstack Software Engineer will design, implement, and maintain features for Conveyor's SaaS platform, involving both backend and frontend work, while collaborating closely with team members and mentoring juniors.

Design, build, and maintain AI-powered B2B SaaS products across frontend, backend, and AI. Own projects end-to-end, collaborate with product and design, ensure maintainability, mentor teammates, and inform roadmap and implementation decisions.

Design and scale ARM64 compute platform infrastructure, hypervisor integrations, instance management, resource orchestration tools, and compute APIs. Develop and maintain low-level services using Python, Go, or compiled systems languages. Collaborate with hardware and global engineering teams, participate in design reviews, debug distributed Linux systems, and mentor junior engineers.

Design, implement, and maintain scalable, secure, high-performance backend systems and public-facing APIs. Collaborate with Product and Data Science teams, lead initiatives improving efficiency and system performance, and support customer satisfaction. Work may involve distributed systems, pricing engines, identity management, authentication, authorization, API versioning, deprecation, and rate limiting.

Designs, builds, tests, deploys, and optimizes full-stack product features using React and Python. Develops GraphQL integrations, scalable backend services, data visualizations, analytics instrumentation, and production-ready platform capabilities. Contributes to UX workflows, CI/CD, monitoring, code quality, and stakeholder updates while collaborating in agile sprints and evaluating new technologies.

Leads complex systems analysis, software design, application development, testing, debugging, documentation, and technical project planning. Oversees development resources, coordinates technology and business teams, evaluates vendor software, maintains supported applications, recommends technology improvements, and supports budgets, risk controls, audits, and regulatory requirements. Mentors less experienced staff and serves as a technical leader across complex projects.

Leads the architecture, development, testing, deployment, troubleshooting, and sustainment of Appian applications supporting Army systems. Provides technical leadership, code reviews, mentorship, secure coding enforcement, requirements collaboration, Agile participation, integrations, documentation, and compliance with DoD cybersecurity, RMF, STIG, and privileged-access requirements.

Lead software engineering for the Patient Onboarding team, building and improving registration, insurance verification, and care-access workflows. Write full-stack production code, lead complex cross-team initiatives, shape technical direction, improve engineering foundations, and support modern AI-enabled development practices. Collaborate with Product, Design, Analytics, and Engineering to improve patient conversion and system reliability.

Designs, builds, and scales backend services and integrations for payments, billing, identity, and partner connectivity. Sets technical vision and architecture for distributed systems, leads cross-team delivery, manages production rollouts, builds fault-tolerant services and data pipelines, and mentors engineers. The role partners with product, design, and engineering teams to deliver frequent, reliable improvements for Flex’s rent payment platform.